Antonin chuckled and took his hand off Fleur's shoulder. "That's it. I took the liberty of having an assortment of different such certificates prepared ahead of time. It makes the actual task much easier."
"Now that they are activated, as long as you never use any dark magic, those certificates should be quite indestructible. Try tearing or burning one; you will see what I mean. Oddly enough, it is an interesting variation on a wedding charm I found in an old Persian work." He shook his head, "And I won't bore you with the research, but you are bonded to the certificates, as they are bonded to you. Use dark magic and they simply dissolve to dust."